Anders: We don't have any plans for that currently. The Chromecast functions similarly to an AirPlay device, but internally, it's very different. When an app appears to be sending audio to the Chromecast, it's actually telling the Chromecast to run its own mini-app on the device, then do the streaming itself. So for example, audio doesn't flow from Spotify on iOS to the Chromecast. Spotify on iOS tells the Chromecast to download and run the Spotify Chromecast app, and the Spotify Chromecast app then downloads the desired audio stream.

All that is to explain that setting up Airfoil Satellite to be a Cast receiver would be enormously difficult (essentially requiring us to reverse-engineer and emulate an entire Chromecast receiver), and it's not something we currently plan to do.